Instrument for cutting bricks



Aug. 17, 1937. D, 1 COFFEY 2,090,471

INSTRUMENT Foa CUTTING BRIcKs Filed Feb. 1o, '1957 55 5534/ 2/ INVENTOR ATTORNEYS Patented Aug. 17, 1937V UNITED srnrss .restan erger trice 9 Claims.

This invention relates to instruments for cutting bricks or blades formed of clay` gypsum, tile, or other material, and has for an object to provide an improved simplied construction 5 wherein bricks may be accurately cut in any dem sired sections or lengths.

Another object of the invention is to provide an instrument k'for cutting bricks wherein the cutting instrument is automatically held at a slight lil angle to the surface of the brick so that part of the brick retained after the cutting operation will have a comparatively straight accurate edge.

Another object of the invention is to provide an instrument for cutting bricks wherein a de- -i sired cutter is arranged at one end of the instrument and a sliding abutment is provided to accurately regulate the length of cut.

In the accompanying drawing:

Fig. 1 is a. longitudinal vertical sectional View 20 through an instrument disclosing an embodiment of the invention, the same being shown applied to one edge of a brick, the section being taken along line I-I of Fig. 2;

Fig. 2 is a top plan viewA of the instrument 25 shown in Fig. 1 in the same relative position on a brick as illustrated in Fig. 1;

Fig. 3 is an end view of the instrument shown in Fig. 2 together with part of the brick;

Fig. 4 is a side view of a slightly modified form 30 of instrument to that shown in Fig. l together with a part of a brick;

Fig. 5 is a top plan View of the structure shown in Fig. 4.

Referring to the accompanying drawing by 35 numerals, I indicates the body of the instrument which is provided with a turned-up portion or member 2 at one end. The turned-up or upstanding member 2 is substantially at right angles to the body I and against the upstanding member ,l rests one surface of the cutter 3.

In laying bricks, tile, and the like, quite often it is necessary to cut a brick or tile in half or to cut off some part so as to fit into the desired place. Heretofore various measuring devices and 45 other devices have been used to indicate where the brick is to be cut. Quite often the devices heretofore used produced inaccurate cutting and consequently certain difficulties in laying bricks.

In the instrument shown in Fig. 1, means have 50 been provided whereby the cutting edge 4 of the cutter 3 may be accurately positioned on the brick whereby the desired part of the brick may be cut off. 'I'he cutter 3 is of substantially the same width as the brick 5 is thick, and when in use 55 usually rests on the side edge of the brick as (Cl. IE5-23) shown in the drawing. The cutter 3 is provided with an upwardly extending projection 6 that acts as an anvil against which a hammer strikes when the cutter functions. A pair of slots I are formed in the cutter 3 of a desired length whereby the cutter may slide along the face t of member 2 as far as desirable when struck a blow with a hammer or other instrument. The slots are so positioned that the pins are engaged by .the lower walls It and thereby support one lend of the body I above brick 5, thus causing the cutting edge l to project a short distance below body I. Also this arrangement causes the surface 3 to be at angle otherthan a right angle to the surface II or brick Pins 9 may be bolts, if desired,

and extends through the member 2, slots l', and through the walls of the band or loop I2. The band or loop I2 is rectangular and is secured at I3 and I 4 to member 2 by spot welding or other forth. The member 2 and band I2 form what l may be termed a guide or a guiding socket wherein the cutter 3 reciprocates within the limits provided by slots l.

Body I is provided with a slot I5 which extends from near member I2 to near the opposite endV of the body and accommodates the pin I6 forming part of the abutment Il. Also body I is provided with a number of graduations I3 for permitting a person to regulate the length of the cut made. on body I and may be moved from one end of the slot i5 to the other. Abutment Il is formed with a contact plate is of sheet metal which is bent to form sides 2d and 2E, which sides merge into the respective ears 22 that slidingly fit against the two outside edge surfaces of body I. In addition, the members 2r. and 2l are provided with turned-in members 23 and 2A (Figs, 1 and 2) that fit over the bottom of the body I to prevent tilting oi member I9. The rod or bar VI6 is welded or otherwise secured to member I9 and extends through slot i5. This bar is surrounded by a washer 25 on which rests one end of the spring 2t, which spring extends into a socket 2l in. the handle 28. The action of the spring 25 is to continually tend to cause the edge 29 of member I9 to fitinto one of the notches 30 formed in the bottom partof body I.. The handle 28 is screwed on to the bar or pin I6 and consequently the tension of the spring may be adjusted Also the handle may be screwed until itV presses CII Abutment Il is slidably mounted Y tightly against washer 25, whereupon the abutment is locked against movement. g When the device is to be used and it is desired to cut off one inch from one end of the 5 block 5, the abutment l1 is moved one inch to the left as shown in Fig. l along the graduation I8. Tne instrument is then placed in position as shown in Fig. 1 and then a hammer is used to strike the anvil 6. This will cause the cutter to function in the desired way. 1n case a fine or Vernier adjustment is desired, the screw 3l is rotated to the desired extent.

In Figs. l and 5 a slightly modied structure is n disclosed wherein there are provided a pair of side plates 32 and 33 secured to or formed integral With body l at the ends. Slots and S5 separate the plates 32 and 33 from body i for almost the entire length of the body so that the ears 2B and 2l mayV freely slide. A number of protuberances Si are provided on the lower sur- I claim:

1. An instrument for cutting bricks into lengths comprising a body having an upstanding member at one end, an abutment slidably mounted on saidbody, and a cutting member carried by said upstanding member, said cutting member iunctieni-ng in a direction substantially normal to said V 2. An instrument of the character described comprising an elongated body, an upstanding 40 member at one end of said body, a Vguide carried by Vsaid upstanding member, a cutter slidably mounted in said guide functioning in a direction substantially normal to said body, and an adjustable abutment mounted on said body for regulating the length of cut.

3. An instrument for cutting a brick into sections comprising a rectangular body longer than itis wide, an upstanding member at one end or" said body, an abutment movable along said body to regulate the size of said sections, a cutter,

5. An instrument for cutting a brick into lengths comprising a rectangular body much longer than it is wide and formed with one end upturned, a band secured to said upturned end and with said end forming a guide, acutter slidably mounted in said guide, means for normally preventing the cutter from moving out of said guide, and an abutment adjustably mounted on said body. Y

6. In an instrument for cutting bricks into lengths including a body having an upturned end, a band secured to said end and with said end forming a cutter guide, a cutter slidably mounted in said guide, said cutter having a slot, and a member carried by said end and said band extending through said slot to prevent said cutter leaving said guide.

7. An instrument for cutting bricks into lengths comprising a metallic body having straight sides and a straight bottom, an upstanding member f at one end of said body, means for holding raised Y the end of the body carrying said upstanding member, a cutter mounted to slide while in con tact with said upstanding member, said cutter and upstanding member being held by said means at an angle other than a right angle, and an abutment having a pair of depending ears engaging the sides of said body, said abutment being slidably mounted on said body, said body being provided with graduations for indicating the respective lengths to be cut.

8. An instrument for cutting bricks into lengths comprising a rectangular body longerv thanit is wide and provided at one end with an upstanding member extending substantially normal to said body, a pin projecting from said Yupstanding member in a direction normal to the upstanding member, a cutter carried by said `upstanding member, said cutter being provided with a slot for accommodating said pin, said slot being of a length and so positioned to allow Said cutter to slide, the bottom of the slot being positioned in respect to the cutting edge of the cutter and the bottom surface of said body that said cutting edge will normally project below Said body when the instrument is resting on a brick and will also cause the cutter to be at an angle in respect to said brick different from a right angle, means carried by said upstanding member for guiding said cutter as it slides, and an abutment slidably f' mounted on said body forregulating the length of cut.

9. An instrument for cutting bricks into lengths including a body, a cutter at oneV end of said body and an abutment slidably mounted on said body,Y

Cil 

